The next step is to try out some example, e.g. usrp_benchmark_usb.py or usrp_wfm_rcv.py.
the test I try, I can see that blinking led is switched of for a couple
seconds, then it blinks at lower
another led near to it turns on (don’t remember which is D402 and
On console, i get this kind of error:
usb_control_msg failed: error sending control message: Connection timed out
usrp: failed to load fpga bitstream
Traceback (most recent call last):
py”, line 106, in ?
main ( )
File “./usrp_benchmark_usb.py”, line 96, in main
File “./usrp_benchmark_usb.py”, line 63, in run_test
File "/usr/local/hamradio/gnuradio/lib/python2.5/site-packages/gnuradio/usrp.py", line 230, in __init__
py", line 940, in sink_s
RuntimeError: can’t open usrp1
==== Eric B.
Confirm that your computer has an EHCI host controller.
The PC has the EHCI host controller:
[root@iz0cez usb]# lspci
00:1a.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI
Now, I’ve tried again launching the usrp_benchmark_usb.py and then
[root@iz0cez usb]# cat
T: Bus=02 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 7 Spd=480 MxCh= 0
D: Ver= 2.00 Cls=ff(vend.)
Sub=ff Prot=ff MxPS=64 #Cfgs= 1
P: Vendor=fffe ProdID=0002 Rev= 1.04
S: Manufacturer=Free Software Folks
Product=USRP Rev 4
C:* #Ifs= 3 Cfg#= 1 Atr=c0 MxPwr= 0mA
I:* If#= 0 Alt= 0 #EPs= 0 Cls=ff
(vend.) Sub=ff Prot=ff Driver=(none)
I:* If#= 1 Alt= 0 #EPs= 1 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 2 Alt= 0 #EPs= 1 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
E: Ad=86(I) Atr=02
(Bulk) MxPS= 512 Ivl=0ms
It seems that I was wrong: USB2 driver seems to be working well, at
least for the first
configuration steps, because I am successful in configuring the Cypress
Then it looks like the problem is actually
in the next step, that is, loading the fpga bitstream
So I have 3 questions:
- What can I use to trace/debug/investigate the final fpga load
- Where is the
source code of the program performing the actual fpga load?
- What does it mean that led D402 turns on during this?
i.a. for help
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